A fiction is <em>basically an imaginary future approach</em>. So, in a similar way a Science fiction is an imaginary future development mostly related to <em>environmental changes, life on the planets other than earth, solar system, etc.</em>
Fiction is nothing but <em>literature of ideas.</em> Kids would be much interested to read about science fiction, which would increase their creativity and also who knows, one day the imaginary aspects could be achieved by <em>one of the kid who is reading the science fiction stories.</em>